This Windows, OS X, and Linux guide will teach you how to jailbreak various devices using evasi0n. The current version of evasi0n is 1.5.3. Note this is an UNTETHERED JAILBREAK, meaning you can reboot your phone just like you normally would.

NOTE: Before running the evasi0n jailbreak, you should fully back up your data via iCloud (Settings > iCloud > Storage & Backup > Back Up Now) or iTunes.

If you are on a lower firmware version than iOS 6.1.2 (again, here's how to check), it is highly recommended you update your phone to iOS 6.1.2 BEFORE jailbreaking. If you haven't yet, you should do this through iTunes, NOT over the air (it's ok if you already have) by following this guide.

Alright, let's assume you're now on iOS 6.1.2 (this guide will also work on iOS 6.0, 6.0.1, 6.0.2, 6.1, and 6.1.1, but it is best to update to 6.1.2) and backed up.

Let's get started. First thing you'll need to do is download the version of evasi0n for your operating system:

Double-click the zip file to unzip it if your browser didn't automatically unzip the file.

Making sure your device is connected, and only one device, double-click evasi0n to launch it. You will see the evasi0n home screen, and evasi0n should tell you your device (and firmware version) is detected. Click the Jailbreak button to begin.

evasi0n will tell you it is connecting to the device, then retrieving information from the device to generate Jailbreak data. This process can take a minute or two, be patient and don't press anything.

evasi0n will then go through many status messages while it reboots and jailbreaks your device. This process also can take a few minutes. Do not touch or unplug the device during this process.

Side note - the step saying "Uploading Cydia packages list..." is a brilliant move on the evad3rs part - it includes a recent list of all packages on default Cydia repositories, including ours, which means when millions of users open Cydia for the first time on their newly jailbroken devices, our servers are not immediately hit with large file downloads. Thanks to saurik for the idea and the evad3rs for the implementation!

At the end of this process, evasi0n will let you know there is now a new Jailbreak icon on your iDevice, and to unlock your device and tap the icon. ONLY TAP THE ICON ONCE, LEAVING YOUR DEVICE CONNECTED.

After doing so, evasi0n will run through more status messages as it continues to jailbreak your iDevice. Don't touch anything.

Cydia is now on your iDevice! You can press Exit in evasi0n now - your jailbreak is complete.

That's it! You're now holding a jailbroken device. Not too bad, eh?

NOTE: If you get stuck on any of the following messages: "Initializing offsets, Finding offsets, patching kernel, or cleaning up," for more than 5 minutes, you can simply do a hard reboot (hold Power and Home buttons for 10-15 seconds until the iDevice restarts).

according to apple jailbreaking violates their copyright jobs hated it i find it funny that all these people who swoon over apple choose to ignore this oh well jb on ip5 6.1 no issues except for cydia overloaded like everyone else thanks evad3rs!!

For those who are stuck on the 'click icon' part of the process:
1. Get to the point of being stucked.
2. Close the process of evasi0n.
3. Change the usb port (dont restart the phone).
4. Redownload and rewrite all the files of evasi0n.
5. Restart the JB process.
6.?????
7. Profit
Now it should work like a charm.